Corpse Knight Gunther is a Manga/Manhwa/Manhua in (English/Raw) language, SUGGESTIVE
series, english chapters have been translated and you can read them here. You are reading Corpse Knight Gunther chapters on ManhwaZ, fastest updating comic site. The Summary is
The war between humans and vampires will come to an end with the victory of the vampires, as expected by all. In the yet-to-be-invaded Holy Land of Bahal, after a concerted effort to counterattack mankind, he succeeds in creating a "corpse knight" who never dies and a "power source" that can move him, thus reviving the gladiatorial "Gunther" as a "corpse knight."